[HIVE-25457] Implement querying Iceberg table metadata

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0.0-alpha-1
• Labels: pull-request-available
• Target Version/s: 4.0.0
• Assignee: Marta Kuczora
• Reporter: Marta Kuczora
• Created: 17/Aug/21 10:58
• Updated: 17/Nov/22 08:48
• Resolved: 23/Aug/21 09:02

Description

In order to be able to query Iceberg table metadata (snapshots, manifests, files), we should add syntax support and implement the feature as well to return the correct response.

The Iceberg metadata tables can be addressed like this: <db_name>.<table_name>.<metatable_name>
For example: default.iceberg_table.history

The following metadata tables are available in Iceberg:
ENTRIES,
FILES,
HISTORY,
SNAPSHOTS,
MANIFESTS,
PARTITIONS,
ALL_DATA_FILES,
ALL_MANIFESTS,
ALL_ENTRIES

Issue Links

• links to: GitHub Pull Request #2589